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A reduced basis localized orthogonal decomposition [PDF]

open access: yesJournal of Computational Physics, 2014
In this work we combine the framework of the Reduced Basis method (RB) with the framework of the Localized Orthogonal Decomposition (LOD) in order to solve parametrized elliptic multiscale problems.
Abdulle, Assyr, Henning, Patrick
core   +5 more sources

Orthogonal Basis Functions over the Binocular Pupil

open access: yesOpen Astronomy, 2010
Sets of orthogonal basis functions over circular areas - pupils in optical applications - are known in the literature for the full circle (Zernike or Jacobi polynomials) and the annulus.
Mathar Richard J.
doaj   +2 more sources

On the Orthogonal Basis of Symmetry Classes of Tensors

open access: yesJournal of Algebra, 2001
Let \(V\) be an \(n\)-dimensional inner product vector space over the complex field \(\mathbb{C}\). Let \(G\) be a subgroup of the symmetric group \(S_m\) on \(m\) letters and \(\chi\) be an irreducible complex character of \(G\). For \(g\in G\), the mapping \(P_g\colon\bigotimes^m_1V\to\bigotimes^m_1V\) is defined by \(P_g(v_1\otimes\cdots\otimes v_m)=
K Azizi
exaly   +2 more sources

Orthogonal Basis-Based Multiview Transfer Spectral Clustering [PDF]

open access: yesJisuanji gongcheng, 2022
The consistency of multiview data is important for multiview clustering.To achieve multiview data with better consistency, this paper proposes a new multiview clustering algorithm, OMTSC.The OMTSC algorithm simultaneously learns the cluster assignment ...
WANG Lijuan, ZHANG Lin, YIN Ming, HAO Zhifeng, CAI Ruichu, WEN Wen
doaj   +1 more source

Using orthogonal transformations to obtain signal sequences with new autocorrelation and spectral characteristics

open access: yesСовременная наука и инновации, 2023
The paper developed a method for obtaining sequences of discrete signals, which greatly simplifies the process of obtaining signal sequences with new autocorrelation and spectral characteristics, based on the properties of orthogonal transformations of ...
V. M. Samus
doaj   +1 more source

Spectra of Self-Similar Measures

open access: yesEntropy, 2022
This paper is devoted to the characterization of spectrum candidates with a new tree structure to be the spectra of a spectral self-similar measure μN,D generated by the finite integer digit set D and the compression ratio N−1.
Yong-Shen Cao   +2 more
doaj   +1 more source

Orthogonal basis for the optical transfer function [PDF]

open access: yesApplied Optics, 2016
We propose systems of orthogonal functions qn to represent optical transfer functions (OTF) characterized by including the diffraction-limited OTF as the first basis function q0=OTFperfect. To this end, we apply a powerful and rigorous theoretical framework based on applying the appropriate change of variables to well-known orthogonal systems.
Ferreira, C.   +3 more
openaire   +7 more sources

Detecting multipartite entanglement via complete orthogonal basis

open access: yesResults in Physics, 2023
We study genuine tripartite entanglement and multipartite entanglement in arbitrary n-partite quantum systems based on complete orthogonal basis (COB). While the usual Bloch representation of a density matrix uses three types of generators, the density ...
Hui Zhao   +5 more
doaj   +1 more source

Using Generalized Basis for Functional Expansion

open access: yesJournal of Nuclear Engineering, 2021
Functional expansion has been rigorously studied as a promising method in stochastic neutron transport and multi-physics coupling. It is a method to represent data specified on a desired domain as an expansion of basis set in a continuous manner.
Zhuoran Han, Benoit Forget, Kord Smith
doaj   +1 more source

Computing an LLL-reduced Basis of the Orthogonal Latice [PDF]

open access: yesProceedings of the 2018 ACM International Symposium on Symbolic and Algebraic Computation, 2018
As a typical application, the Lenstra-Lenstra-Lovasz lattice basis reduction algorithm (LLL) is used to compute a reduced basis of the orthogonal lattice for a given integer matrix, via reducing a special kind of lattice bases. With such bases in input, we propose a new technique for bounding from above the number of iterations required by the LLL ...
Chen, Jingwei   +2 more
openaire   +3 more sources

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